Julius schaeppi



(No Model.)

J. SOHAEPPI.

STEM WINDING WATGH.

No. 286,852. Patented Oct; 16, 1883.

n. PCTERS. Pinto-W. Wm D. C.

UNITED STATES PATENT OFFICE.

JULIUS SCHAEPII, OF CINCINNATI, OHIO, ASSIGNOR OF TIVO-THIRDS TO EDW'ARD S. \VAYNE AND JEROME l3.- HOLMAN, OF SAME PLACE.

STEM-WINDING WATCH.

SPECIFICATION forming part of Letters Patent No. 286,852, dated October 16, 1883,

Application filed January 20, 1883.

T0 aZZ whom it may concern Be it known that I, JULIUS SCHAEPPI, a citizen of the United States, and a resident of Oincimiati, inthe county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Stem-Vinding \Vatches, of which the following is a specification.

My invention relates to that class of stemwinding watches in which the winding and hand-setting devices are thrown into engagement with the gearing for winding up the mainspring and the gearing for setting the hands by means of a longitudinal]y-movable stem.

The invention consists in the combination of a centrally-pivoted yoke or arm having a pin or projection at one en d, upon which bears the free end of a b0w-shaped spring, that also serves to hold a dog engaged with the spurwheel on the s )ring-barrel. The other end of the pivoted yoke is provided with aprojection or lug, which engages with the outer end of a centrally-pivoted dog, the inner end of which has a pin that extends through an oblique slot made in the pillar-plate and enters a eircun1- ferential groove in a longitudinally-movable stem. The pivoted yoke carries an end pinion, which meshes into the spunwheel 011 the spring-barrel, and with an intermediate pinion that engages with a spur-wheel on the 1011- gitudinally-movable stem. These parts c011- stitute the setting-gear, which is held in an operative position by means of thepivoted dog bearing upon one end of the pivoted yokeand the spring bearing upon the other end of the same. The setting-gear consists of the aforesaid stem and its spur-wheel, the central spurwheel 011 the pivoted yoke, and a pinion 011 the end of the latter, in connection with the ordinary pinions on the arbors of the hands. W'hen the stem is drawn out to operate the hand-setting devices, the pivoted dog is vibrated and caused to bear upon the toe or beak of the pivoted yoke, the spring on the other end of said yoke sliding freely on the pin or point of contact. \Vhen in this position, the spring holds the toe or beak on the ibrward end of the yoke against the dog, so as to constitute a positive stop device, which effectually holds the winding-pinion at the op- (No model.)

posite end of the yoke from mesh with the mainspring-pinion.

In the accompanying drawings, Figure 1 is a plan view of a stem-winding watch, with the dial removed to show the application of my improyements which are embodied therein. Fig. 2 is a central section on line a' m, Fig. '1. Fig. 3 is a longitudinal elevation on an enlarged scale, showing the winding-arbor with the driving-wheel and a washer mounted thereon, and the circular groove in which rests the pin of the shifting-lever. Fig. 4 is a plan view of the pillar-plate, showing the openings for the reception and operation of the driving-gear on the arbor and the pin on the shifting-bar.

A represents the pillar-plate, of the usual construction, and on which are mounted the great wheel B, connecting with the springbarrel, the center hand-wheel,O, intermediate gear, 0, and the yoke D, containing the winding-wheel d, setting-wheel d, and intermediate driving-gear, E.

F is a bow-spring, pivotally secured between its ends to the pillar-plate, holding the winding-wheel d at one of its ends in engagement with the spring-wheel B, and the pawl f in engagement with the said spring or great wheel 13, to prevent its backward movement.

f is a downwardly-projecting pin or lug on one end of yoke D, against which the end of the spring rests to prevent its coming in con tact with the windingqvheel d. \Vinding and setting wheels (Z d are pivoted 011 studs or pivots projecting from the bottom of yoke D, the intermediate driving-wheel, E, being pivoted on the screw 0, which secures the yoke pivotally in position 011 the pillar-plate.

G is a shifting bar or lever, pivoted between its ends on the pillarplate, so that its end I/ engages the lug g, constructed on the end of 0 pivoted at its inner end in a box, I, secured to the bottom of the pillar-plate, as shown in IOO a a I r 286,852

Fig. 2, and passes through the stem J, having a crown or cap, J, on its outer end for operating it, as customary.

2' is a gear-wheel mounted on the square thesetting-wheels into gear, both driving-gear 6 and washer j sliding on the square part of the arbor, and not interfering with the drivand is particularly adapted to the rough hand ling that other devices of a similar nature are not, there being no extraneous mechanism to become impaired by a short limited use of the same.

I claim 1. The combination of the centrally-pivoted okeD havin the )ro'ection and )inion d at one end and the toe or beak g and pinion d at the other end, and provided with a central spur-wheel, E, the bow-spring F, having a free end bearing upon and adapted to slide on the projection f of the yoke D, and

the centrally-pivoted dog or shifting-lever G,

adapted to bear upon the toe or beak g of the pivoted yoke for locking the setting and winding devices, with the watch-case, the longitudinally-movable stem, and the pinions or spur-wheels of the spring-barrel and hands, substantially as described.

2. The combination of the pillar-plate having the oblique slot h and adjacent opening 1', and the centrally-pivoted dog or shifting-lever G, having the pin h, with the longitudinallyinovable stem having a groove to receive said pin, and a pinion through which said stein can slide, and the pivoted yoke,-adapted to be shifted and locked by the lever G, and the spring bearing upon said pivoted yoke, substantially asdescribed.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JULIUS SCHAEPPI. 

